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S&S Cycle 551CE Easy Start Chain Drive Camshaft Kit

Convert your Twin Cam to a gear drive

Kit includes cams, gears both inner and outer, gaskets,

bearings, bolts and heavy-duty bearing plate

How it works: Each of the 2 exhaust cam lobes are equipped with a spring loaded compression release lobe on the heel of the cam at the point where the valve would normally be fully closed. The lobe holds the exhaust valve open slightly at cranking speed. This releases some of the compression, making the engine much easier to crank. Once the engine starts, and rpm increases, the compression release lobe is centrifugally retracted and the engine runs normally, with full compression, and without any loss in performance. This allows a stock starter and battery to start nearly any engine.